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Top Forums Shell Programming and Scripting How to store regular expression in a variable? Post 302952190 by Aia on Friday 14th of August 2015 04:10:17 PM
Old 08-14-2015
CTP02_[0-9]*.tar is not a regular expression, it is a glob.
And it gets interpreted and expanded before echo shows.


Code:
[aia@localhost rdineshredy]$ ls
[aia@localhost rdineshredy]$ touch CTP02_{0..9}.something.tar
[aia@localhost rdineshredy]$ ls
CTP02_0.something.tar  CTP02_3.something.tar  CTP02_6.something.tar  CTP02_9.something.tar
CTP02_1.something.tar  CTP02_4.something.tar  CTP02_7.something.tar
CTP02_2.something.tar  CTP02_5.something.tar  CTP02_8.something.tar
[aia@localhost rdineshredy]$ tar_files="CTP02_[0-9]*.tar"
[aia@localhost rdineshredy]$ echo $tar_files
CTP02_0.something.tar CTP02_1.something.tar CTP02_2.something.tar CTP02_3.something.tar CTP02_4.something.tar CTP02_5.something.tar CTP02_6.something.tar CTP02_7.something.tar CTP02_8.something.tar CTP02_9.something.tar
[aia@localhost rdineshredy]$ rm -f CTP02_*
[aia@localhost rdineshredy]$ ls
[aia@localhost rdineshredy]$ echo $tar_files
CTP02_[0-9]*.tar
[aia@localhost rdineshredy]$

 

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virt-tar-in(1)						      Virtualization Support						    virt-tar-in(1)

NAME
virt-tar-in - Unpack a tarball into a virtual machine disk image. SYNOPSIS
virt-tar-in -a disk.img data.tar /destination virt-tar-in -d domain data.tar /destination zcat data.tar.gz | virt-tar-in -d domain - /destination WARNING
Using "virt-tar-in" on live virtual machines can be dangerous, potentially causing disk corruption. The virtual machine must be shut down before you use this command. DESCRIPTION
"virt-tar-in" unpacks an uncompressed tarball into a virtual machine disk image or named libvirt domain. The first parameter is the tar file. Use "-" to read the tar file from standard input. The second parameter is the absolute target directory to unpack into. EXAMPLES
Upload a home directory to a guest: virt-tar-in -d MyGuest homes.tar /home JUST A SHELL SCRIPT WRAPPER AROUND GUESTFISH
This command is just a simple shell script wrapper around the guestfish(1) "tar-in" command. For anything more complex than a trivial copy, you are probably better off using guestfish directly. OPTIONS
Since the shell script just passes options straight to guestfish, read guestfish(1) to see the full list of options. SEE ALSO
guestfish(1), virt-cat(1), virt-copy-in(1), virt-copy-out(1), virt-edit(1), virt-make-fs(1), virt-tar-out(1), <http://libguestfs.org/>. AUTHORS
Richard W.M. Jones ("rjones at redhat dot com") COPYRIGHT
Copyright (C) 2011 Red Hat Inc. <http://libguestfs.org/> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. libguestfs-1.18.1 2013-12-07 virt-tar-in(1)
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